China SRRC: RFID Technical Requirements
Technical Requirements for 900MHz Band (RFID) Radio Transmitting Equipment
I. Operating Frequency Range
920-925MHz.
II. Frequency Tolerance
No more than 20×10-6.
III. Occupied Bandwidth
No more than 250kHz.
IV. Channel Center Frequency
fc (MHz) = 920.125 + M×0.25 (M is an integer, with values ranging from 0 to 19).
V. Adjacent Channel Power Leakage Ratio
No more than -40dBc (first adjacent channel), no more than -60dBc (second adjacent channel).
VI. Effective Radiated Power (e.r.p.) Limits
|
Frequency Range |
Limit (e.r.p.) |
|
920-920.5MHz |
100mW |
|
920.5-924.5MHz |
2W |
|
924.5-925MHz |
100mW |
VII. Operating Mode
Frequency hopping spread spectrum method, with a maximum dwell time of 2 seconds per hop.
VIII. General Spurious Emission Limits
(i) When the transmitter is in the maximum power transmission state
|
Test Frequency Range |
Limit |
Measurement Bandwidth |
Detection Method |
|
30MHz-1GHz |
-36dBm |
100kHz |
RMS (Root Mean Square) detection |
|
1GHz-12.75GHz |
-30dBm |
1MHz |
(ii) When the transmitter is in standby or idle state
|
Test Frequency Range |
Limit |
Measurement Bandwidth |
Detection Method |
|
30MHz-1GHz |
-57dBm |
100kHz |
RMS (Root Mean Square) detection |
|
1GHz-12.75GHz |
-47dBm |
1MHz |
IX. Special Frequency Band Spurious Emission Limits
|
Test Frequency Range |
Limit |
Measurement Bandwidth |
|
48.5-72.5MHz |
-54dBm |
100kHz |
|
76-108MHz |
-61dBm |
100kHz |
|
167-223MHz |
-61dBm |
100kHz |
|
470-702MHz |
-61dBm |
100kHz |
|
223-235MHz |
-61dBm |
100kHz |
|
806-821MHz |
-61dBm |
100kHz |
|
824-835MHz |
-61dBm |
100kHz |
|
851-866MHz |
-57dBm |
100kHz |
|
869-880MHz |
-57dBm |
100kHz |
|
885-915MHz |
-61dBm |
100kHz |
|
930-960MHz |
-57dBm |
100kHz |
|
1164-1300MHz |
-52dBm |
1MHz |
|
1447-1467MHz |
-52dBm |
1MHz |
|
1559-1610MHz |
-52dBm |
1MHz |
|
1710-1785MHz |
-49dBm |
1MHz |
|
1785-1805MHz |
-52dBm |
1MHz |
|
1805-1880MHz |
-58dBm |
1MHz |
|
1880-1920MHz |
-52dBm |
1MHz |
|
1920-1980MHz |
-49dBm |
1MHz |
|
2010-2025MHz |
-52dBm |
1MHz |
|
2110-2170MHz |
-52dBm |
1MHz |
|
2170-2200MHz |
-52dBm |
1MHz |
|
2300-2400MHz |
-52dBm |
1MHz |
|
2483.5-2500MHz |
-52dBm |
1MHz |
|
2500-2690MHz |
-52dBm |
1MHz |
|
3300-3600MHz |
-52dBm |
1MHz |
|
4800-5000MHz |
-52dBm |
1MHz |
X. Receiver Blocking Limits
|
Blocking Interference Signal Frequency |
Limit |
|
fc±2MHz |
-23dBm |
|
fc±5MHz |
-14dBm |
|
fc±10MHz |
-8dBm |
|
Note: fc is the nominal center frequency of the equipment. |
|
XI. Test Methods
The relevant test methods for the technical requirements of 900MHz band radio frequency identification (RFID) radio transmitting equipment will be formulated separately.
